Black PMMA Plain Plastic Flat Washers DIN 125 Standard HB15 Hardness
Black PMMA plastic flat washers
With long service 5～8 years and keep color well .
Suitable deigns for easy operation
Resistant damp and water proof
200 times to common glass on impact resistance
Quite light weight only half to glass
Material
Made from plastic PMMA
Fire Proof Class
UL94V-0 standard
Physical Performance
| Density ( g/cm3) | 1.2 |
| Water absorption % | 0.4 |
| Shrinkage % | 0.5～0.8 |
| Light transmittance % | 92 |
Mechanical Property
| Tensile strength kgf/mm2 | 6～7 |
| Compressive strength kgf/mm2 | 12～14 |
| Elongation at break % | 50 |
| Bending strength MPa | 110 |
| Modulus of elasticity for bending MPa | 2400 |
| Notched Impact Strength MPa(kgf/mm) | 4 |
| Hardness HR | 80 |
| Modulus of elasticity for tension GPa | 3 |
Electrical Performance
| Specific volume resistance Ω·cm | 1015 |
| Dielectric constant | 4 |
| Arc resistance sec | 120 |
| Dissipation factor | 110 |
| Dielectric strength(kV/mm) | 20 |
| Dielectric constant | 3.7 |
Thermal Performance
| Heat distortion temperature ℃ | 68～69 |
| Coefficient of linear expansion ℃ | 0.00005—0.00009 |
| Normal working temperature ℃ | -60～65 |
| Brittle temperature ℃ | -60 |
| Melting temperature ℃ | 240～270 |
| Pyrogenic decomposition temperature ℃ | 270 |
Specification
| d1 | 16 | ±0.2 |
| d2 | 8.2 | ±0.2 |
| s | 1.5 | ±0.2 |
All sizes are in millimeter
Unspecified tolerances are referred to ISO 2768m .
Characteristics
Strong ductility
Its 10 times to silicon glass on ductility
Good insulation
Heat resistance
Resistant impact
The strength is about 200 times to common glass .
Resistant fire
Based on UL94V-0 level .
Environment friendly
Plastic PMMA flat washers are nontoxic material meet related standards .
Saving energy
Perfect light transmittance to reduce related device with electricity .
Available for different climates .
Tensile strength and light transmittance for plastic PMMA flat washers are only reduce a little after 4 years .
Application
Plastic PMMA flat washers with good performances and much advantages compared to glass and other plastic materials , they are used to
1 , Box for lights
2 , Building glass
3 , Tableware
4 , Sanitary ware
5 , Various logos
RFQs
What are advantages for PMMA plastic flat washers ?
PMMA plastic flat washers are very light but with quite high tensile strength that ups to 200 times compared to normal glass .
What colors are available for PMMA plastic flat washer ?
Normally , white ,red ,black ,green and grey . other colors can be customized .
Is there any other size for PMMA plastic flat washers ?
Yes , our specifications for PMMA plastic flat washers from M1.0 to M50 .
How many days for delivery ?
Generally , one week for order quantity over 100 000 pcs .
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Black PMMA Plain Plastic Flat Washers DIN 125 Standard HB15 Hardness Images
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